package?springboot.study.common;

import?java.awt.Color;
import?java.awt.Font;
import?java.awt.Graphics;
import?java.awt.image.BufferedImage;
import?java.io.IOException;
import?java.io.OutputStream;
import?java.util.Random;

import?javax.imageio.ImageIO;

public?class?AuthImageCodeUtils?{

	private?static?final?Color?Color?=?null;
	private?static?char?mapTable[]?=?{?‘a(chǎn)‘?‘b‘?‘c‘?‘d‘?‘e‘?‘f‘?‘g‘?‘h‘?‘i‘?‘j‘?‘k‘?‘l‘?‘m‘?‘n‘?‘o‘?‘p‘?‘q‘
			‘r‘?‘s‘?‘t‘?‘u‘?‘v‘?‘w‘?‘x‘?‘y‘?‘z‘?‘0‘?‘1‘?‘2‘?‘3‘?‘4‘?‘5‘?‘6‘?‘7‘?‘8‘?‘9‘?};

	/**
	?*?功能:生成彩色驗(yàn)證碼圖片?參數(shù)width為生成圖片的寬度參數(shù)height為生成圖片的高度參數(shù)os為頁(yè)面的輸出流
	?*/

	public?static?String?getCerPic（int?width?int?height?OutputStream?os）?{
		if?（width?			width?=?60;
		}
		if?（height?<=?0）?{
			height?=?20;
		}
		BufferedImage?image?=?new?BufferedImage（width?height?BufferedImage.TYPE_3BYTE_BGR）;
		//?獲取圖形上下文
		Graphics?graphics?=?image.getGraphics（）;
		//?設(shè)定背景顏色
		graphics.setColor（new?Color（0xDCDCDC））;
		graphics.fillRect（0?0?width?height）;
		//?邊框
		graphics.setColor（Color.black）;
		graphics.drawRect（0?0?width?-?1?height?-?1）;
		//?隨機(jī)產(chǎn)生驗(yàn)證碼
		String?strEnsure?=?““;
		//?4代表4位驗(yàn)證碼
		for?（int?i?=?1;?i?<=?4;?i++）?{
			strEnsure?+=?mapTable[（int）?（mapTable.length?*?Math.random（））];
		}
		//?將圖形驗(yàn)證碼顯示在圖片中
		graphics.setColor（Color.black）;
		graphics.setFont（new?Font（“Atlantic?Inline“?Font.PLAIN?20））;
		String?str?=?strEnsure.substring（0?1）;
		graphics.drawString（str?8?17）;//?8:左右距離17:上下距離
		str?=?strEnsure.substring（1?2）;
		graphics.drawString（str?20?15）;
		str?=?strEnsure.substring（2?3）;
		graphics.drawString（str?35?18）;
		str?=?strEnsure.substring（3?4）;
		graphics.drawString（str?45?15）;
		//?隨機(jī)產(chǎn)生10個(gè)干擾點(diǎn)
		Random?random?=?new?Random（）;
		for?（int?i?=?0;?i?<=?10;?i++）?{
			int?x?=?random.nextInt（width）;
			int?y?=?random.nextInt（height）;
			graphics.drawOval（x?y?1?1）;
		}
		//?釋放圖形上下文
		graphics.dispose（）;

		try?{
			ImageIO.write（image?“JPEG“?os）;
		}?catch?（IOException?e）?{
			e.printStackTrace（）;
			return?““;
		}
		return?strEnsure;

	}
}

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2018-11-09?10:21??spring-boot-study\
?????文件?????????397??2018-11-08?10:57??spring-boot-study\.project
?????目錄???????????0??2018-11-08?10:57??spring-boot-study\.settings\
?????文件??????????90??2018-11-08?10:57??spring-boot-study\.settings\org.eclipse.m2e.core.prefs
?????文件?????????957??2018-11-09?10:21??spring-boot-study\pom.xml
?????目錄???????????0??2018-11-09?10:21??spring-boot-study\spring-boot-common\
?????文件????????1517??2018-11-09?10:21??spring-boot-study\spring-boot-common\.classpath
?????文件?????????570??2018-11-09?10:21??spring-boot-study\spring-boot-common\.project
?????目錄???????????0??2018-11-09?10:21??spring-boot-study\spring-boot-common\.settings\
?????文件?????????191??2018-11-09?10:21??spring-boot-study\spring-boot-common\.settings\org.eclipse.core.resources.prefs
?????文件?????????356??2018-11-09?10:21??spring-boot-study\spring-boot-common\.settings\org.eclipse.jdt.core.prefs
?????文件??????????90??2018-11-09?10:21??spring-boot-study\spring-boot-common\.settings\org.eclipse.m2e.core.prefs
?????文件?????????456??2018-11-09?10:21??spring-boot-study\spring-boot-common\pom.xml
?????目錄???????????0??2018-11-09?10:21??spring-boot-study\spring-boot-common\src\
?????目錄???????????0??2018-11-09?10:21??spring-boot-study\spring-boot-common\src\main\
?????目錄???????????0??2018-11-09?10:22??spring-boot-study\spring-boot-common\src\main\java\
?????目錄???????????0??2018-11-09?10:22??spring-boot-study\spring-boot-common\src\main\java\springboot\
?????目錄???????????0??2018-11-09?10:22??spring-boot-study\spring-boot-common\src\main\java\springboot\study\
?????目錄???????????0??2018-11-09?11:17??spring-boot-study\spring-boot-common\src\main\java\springboot\study\common\
?????文件????????2342??2018-11-09?10:23??spring-boot-study\spring-boot-common\src\main\java\springboot\study\common\AuthImageCodeUtils.java
?????文件????????1289??2018-11-09?11:13??spring-boot-study\spring-boot-common\src\main\java\springboot\study\common\JsonResult.java
?????文件?????????612??2018-11-09?11:19??spring-boot-study\spring-boot-common\src\main\java\springboot\study\common\LoginResult.java
?????目錄???????????0??2018-11-09?11:25??spring-boot-study\spring-boot-common\src\main\resources\
?????目錄???????????0??2018-11-09?10:21??spring-boot-study\spring-boot-common\src\test\
?????目錄???????????0??2018-11-09?11:25??spring-boot-study\spring-boot-common\src\test\java\
?????目錄???????????0??2018-11-09?11:25??spring-boot-study\spring-boot-common\src\test\resources\
?????目錄???????????0??2018-11-09?10:21??spring-boot-study\spring-boot-common\target\
?????目錄???????????0??2018-11-09?10:22??spring-boot-study\spring-boot-common\target\classes\
?????目錄???????????0??2018-11-09?10:21??spring-boot-study\spring-boot-common\target\classes\meta-INF\
?????文件?????????372??2018-11-09?10:21??spring-boot-study\spring-boot-common\target\classes\meta-INF\MANIFEST.MF
?????目錄???????????0??2018-11-09?10:21??spring-boot-study\spring-boot-common\target\classes\meta-INF\maven\
............此處省略722個(gè)文件信息